Research map / 3D vision / Face and shape
DIST: Rendering Deep Implicit Signed Distance Function With Differentiable Sphere Tracing
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| use differentiable sphere-traced depth optimization instead of DeepSDF's fixed 3D sampling | DeepSDF shape completion · ShapeNet dense depth, sofa/plane/table | median Chamfer Distance: sofa 5.37 -> 4.12; plane 3.71 -> 2.18; table 12.93 -> 5.37 | Helped |
| add silhouette-mask supervision | DIST shape completion · ShapeNet sparse depth, sofa/plane/table | median Chamfer Distance: sofa 50%: 5.75 -> 3.98; plane 20pts: 5.30 -> 3.60; table 20pts: 15.83 -> 7.62 | Helped |
| use random latent initialization rather than PMO's original initialization | PMO · PMO synthetic test set, car and plane | Chamfer Distance (gt→pred): car 0.661 -> 1.187; plane 1.129 -> 6.124 | Hurt |
| use DIST with random initialization instead of PMO's original method | multi-view shape prediction · PMO synthetic test set, car and plane | Chamfer Distance (gt→pred): car: 0.661 vs 0.919; plane: 1.129 vs 1.595 | Mixed |
| add parallel ray processing (ablation) | DIST renderer · 512×512 rendering | time: 1.6h -> 3.39s | Helped |
| add dynamic unfinished-ray masking (ablation) | DIST renderer · 512×512 rendering | query count: 6.06M -> 1.99M | Helped |
| add aggressive marching (ablation) | DIST renderer · 512×512 rendering | query count: 1.99M -> 1.43M | Helped |
| add coarse-to-fine tracing (ablation) | DIST renderer · 512×512 rendering | query count: 1.43M -> 887K | Helped |
| increase the maximum tracing steps from 50 to 100 (ablation) | DIST renderer with coarse-to-fine tracing · 512×512 rendering | query count: 887K -> 898K | No clear effect |
| use aggressive marching (ablation) | DIST renderer · thin surface regions | rendering quality | Hurt |
| use an excessively large convergence threshold (ablation) | DIST renderer · rendered shape boundaries | rendering quality | Hurt |
| use an excessively small convergence threshold (ablation) | DIST renderer · rendered geometry | rendering completeness | Hurt |
Closest papers by meaning
- SDFDiff: Differentiable Rendering of Signed Distance Fields for 3D Shape Optimization (CVPR 2020 · similarity 0.91)
- Sensing Surface Patches in Volume Rendering for Inferring Signed Distance Functions (AAAI 2025 · similarity 0.89)
- Neural Signed Distance Function Inference through Splatting 3D Gaussians Pulled on Zero-Level Set (NeurIPS 2024 · similarity 0.87)
- DUDF: Differentiable Unsigned Distance Fields with Hyperbolic Scaling (CVPR 2024 · similarity 0.87)
- Few-Shot Unsupervised Implicit Neural Shape Representation Learning with Spatial Adversaries (ICML 2024 · similarity 0.87)
- HotSpot: Signed Distance Function Optimization with an Asymptotically Sufficient Condition (CVPR 2025 · similarity 0.86)
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